Most diagnostic character of centromere is :-

Give the diagnostic characters of Aves or birds.

Give the diagnostic characters of Reptilia.

Diagnostic character of echirioderms is the presence of a. Water vascular system b. Spiny skin c. exclusively marine d: All the above.

The most distinctive character of sponge is

Reappearance of nuclear membrane & nucleolus along with thining & elongation in chromosomes are diagnostic characters for the phase:-